Matched golf club set having V-shaped grooves that change from c

Details Matched golf club set having V-shaped grooves that change from c Matched golf club set having V-shaped grooves that change from c

1995-03-10

1997-01-21

Pierce, William M.

Games using tangible projectile

Golf

Club or club support

473330, 473314, A63B 5300

Patent

active

055955479

ABSTRACT:
A set of golf club irons having common swing weights segregated into distance irons, fairway irons and accuracy irons, each grouping having common shaft lengths and lie angles. Each club head is vertically, horizontally and laterally balanced about its sweet spot. The areas of the faces of each club are substantially identical.
Each club face has multiple, generally parallel, horizontal, V-shaped scoring. The distance and fairway irons have scoring which promotes top spin in the ball. The accuracy irons have scoring which promotes back spin.

REFERENCES:
patent: 3751035 (1973-08-01), Lockwood
patent: 3984103 (1976-10-01), Nix
patent: 4147349 (1979-04-01), Jeghers
patent: 4679791 (1987-07-01), Hull
patent: 4784390 (1988-11-01), Horgen
patent: 4941666 (1990-07-01), Suganuma
patent: 4971321 (1990-11-01), Davis
patent: 5029864 (1991-07-01), Keener
patent: 5121918 (1992-06-01), Teramoto et al.
patent: 5228688 (1993-07-01), Davis
patent: 5333859 (1994-08-01), Teramoto et al.
patent: 5429353 (1995-07-01), Hoeflich

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